Yes, I've had stress cause similar problems and it still could be your blood pressure meds too I think. The other symptoms are often common blood pressure med side effects. What kind of blood pressure med are you taking? Here's a pins and needle forum discussion for Toprol, a beta blocker but most of the references I found for pins and needs was from ACE inhibitors:

http://www.medications.com/effect/ta...0and%20needles